Function decode_init

libavcodec/mpegaudiodec_template.c:317–320

}

static av_cold int decode_init(AVCodecContext *avctx)
{
    return decode_ctx_init(avctx, avctx->priv_data);
}

#define C3 FIXHR(0.86602540378443864676/2)
#define C4 FIXHR(0.70710678118654752439/2) //0.5 / cos(pi*(9)/36)